Actuating mechanism for electric switches.



No. 883,150. PATENTED MAR. 24, 1908.

H. B. SNELL. ACTUATING MECHANISM FOR ELECTRIC SWITCHES.

APPLICATION FILED J'AH.26,1907.

. 3 m 'l" w w j R v' W g lt W K fix a NITEDsTArns r 'rENT OFFICE.

HARRY B. SNELL, O1 TOLEDO, OHIO, ASSIGNOR llO 'l.llE SNELL-JUDD'COMPANY,

A CORPORATION OF'OHIO.

AC'JIUA'JJING MECHANISM FOR ELECTRIC SWITCHES.

. Specification of Letters Patent.

Patented March 24, 1908.

Application filed January 26, 1907. Serial No. 854,175.

Tool! whom it mo concern:

Be 'it known that l, l lA ltltY B. SNELL, of l olodo,'eounty of Lucas,and State o'f Ohio, have invented certain new and useful lgmpro-vementsin Actua'ti-ng lVlochanisms for Electric Switches; and I do herebydeclare that the l'ollowing is a lull, clear, and exact descriptionthereof, which 'will'enable others skilled in the .art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form part of this specification.

This invention has reference to mechanisms lor actuating electricswitches, the mechanism being especiallyadapted for operatingsnap-switches employed to light and extin- .g'uish the incandescentlamps in store windows at 'predc-atermined hours.

in carrying out my invention, I em 1ploy the novel combinationarrangement ant details of construction hereinafter shown, described andclaimed.

In the accompanying drawings, Figure 1 is a plan. View of my completemechanism; Fig. 2 1s a front elevation of the same.

Referring to the details, the frame for the mechanism comprises a base 1and a vertical supporting Wall 2, both preferably cast in one piecetoinsure' rigidity; Upon the plate 2 is supported. fluGlOCk movementconfined within a case 3, the movement actuating a spindle 4 to rotatethe same once in twenty-four hours. Secured upon the spindle 4 to rotatetherewith is a l1al-plate5 w nch is graduated and numbered to indicatethe twenty iour hours of the day. Carried upon the sp ndle 1 to, rotatetherewith and complete a single rotation-in twenty-four hours are disks6 and '7 having smooth eripheries, the periphery 'of each dish beinglndented. by a notch or recess indicated at 8 and 9 respectively. Thedisks are independently rotatable or adjustable upon the spindle 4, andwhen adjusted with respect to the notches are secured by a nut 10 uponthe outer end. of the spindle.

11 and 12 are levers pivoted at 13 and 14 respectively, the ends 15 and1(3 of the levers having teeth 17 and 18, the teeth 17.. being adaptedto ride upon the periphery of the disk 6 and enter the notch 8 andv thetooth'18 bein adapted. to ride upon the periphery of the isk 7 and enterthe notch. 9.

19 is a coiled spring having its ends connected to the levers 11 and 12to cause the ends 1 5 and 16 of the lovers to lie in resilient andTrespectively. The end. 20 of :the lover I 1 will be elevated to theposition-(tindotted lines when the tooth upon its opposite endgo entersthe notch 8, and the end 26) is provided with a shouldered catch =.or.hook 21 adapted when in its normal lowered position, in full lines, toengage one or the other oi shoulders 22 and 23 provided at diametrically5 opposite points o'l' a cam-disk 24, keyed or otherwise secured. upon aspindle 25 whichion being rotated by quarter turns operates a snapswitch 26 0i onlinaryconstruction, the switch being ol that characterwhich is .70 turned o'fl'and on successively by successive quarterrotations of its actuating element.

The cam-disk 2 1- is rotated in the direction of the arrow by a bandspring 27 having its inner end secured. to the spindle 25 and its outerend to a spring-case 28 provided with a gear 29 adapted to be engaged bya small gear 30 carried upon a winding spindle 31 the latter beingrotated by an ordinary crankengaging the squared outer end thereof. 9The end 32 of the lever 12 is pivotally connected-with an L -lever 33pivoted at 34, the end 35 of the free arm of the lever 33 being disposedrelative to-the end. 20 of the lever 11 at a quarter distance about theperiphery 35 of the cam-disk. As a result of this arrange ment theshoulder 22 of the cam-disk, when released from the hook 21 at the endof the lever 1 ].,will rotate through a quarter turn and bearrestcdbystriking the end 35 of the lever 33. When the tooth. 18 of thelever 12 enters the notch 9 in the eriphery of the disk 7, the oppositeend will assume a osition b in dotted lines, the lever 33 also a teringits position, shown in dotted lines, and releasing the shoulder 22,thereby permitting the calm disk to rotate through a quarter turn asecond time,the rotation of the cam-disk being new checked by the hookon the end of the lever 11. engaging the shoulder 23, the latter havingin the mean time advanced to the position previously occupied by theshoulder 22. in this manner one of the shoulders u )on the cam disk willbe out of engagement w ion the other is engaged. It is thus seen, whenthe notches in the disks 6 and 7 are properly positioned opposite thenumerals on the dial-plate corresponding to the time at which thc'lampsare to be lighted and extinguished, that such lighting and extinguishingwill take place at the hours indicated.

In the illustration of the mechanism, the notched disks are positionedto light the lam s at 5 oclock, the tooth at the end of the ever incontact with the disk 6 entering the notch in said disk at that hour,and releasing the caIn-disk. At 11 o clock the notch in the disk 7 willarrive at a osition at which the tooth upon the end of t e lever 12 willenter it and release the cam disk a second time. The arran ement of themechanism is extremely simp e and effective, the employment ofindependently operated levers to successively arrest and release thecam-disk being especially efiective.

Having described my invention, what I claim and desire to secure byLetters Patent, is:

In a switch-actuating mechanism, a clock, a pair of disks rotatedthereby .to complete one rotation intwenty-four hours, each providedwith a notch in its periphery, a pair of substantially parallel levershaving .their ends in spring-pressed contact with the peripheries of thenotched disks and having projections adapted to enter the notches, aspring-rotated switch carrying a cam-disk provided with op ositelydisposed shoulders, the end of one 0 said para lel levers being providedwith a hook-sha ed end in the path of the shoulders of t e cam-disk, anL-lever pivoted to the end of the other parallel lever and disposed inthe path of the shoulders of the cam-disk, the end of the L-lever adated to engage and release the shoulders 0 the cam-disk being arran edrelative to the hook-shaped end of the st parallel lever at a quarterdistance about the eriphery of the cam-disk, whereby the shou ders ofthe cam-disk will be successively engaged and releasedand intermittentguarter movements imparted to the camisk, substantially as described. r

In testimony, that I claim the foregoing as my own I affix my signature,in presence of two witnesses.

HARRY B. SNELL.

Witnesses:

M. A. TRAGEY, CARL H. KELLER.

